package com.forum.ajax.homepage;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.forum.domain.User;
import com.forum.domain.UserDAO;

public class Profile extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public Profile() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the GET method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		
		String type = request.getParameter("type");
		int id = Integer.parseInt(request.getParameter("id"));
		UserDAO userdao = new UserDAO();
		User user = userdao.findById(id);
		if(type.equals("nickname"))
		{
			String nickname = request.getParameter("data");
			List<User> userList = userdao.findByProperty("nickname", nickname);
			if(userList.size() == 0)
				out.print("success");
			else {
				if(userList.get(0) == user)
					out.print("success");
				else
					out.print("error");
			}
		}
		else if (type.equals("password")) {
			String password = request.getParameter("data");
			if(user.getPassword().equals(password))
			{
				out.print("success");
				request.getSession().setAttribute("password_correct", "yes");
			}
			else {
				request.getSession().removeAttribute("password_correct");
				out.print("error");
			}
		}
		else if(type.equals("submit"))
		{
			if(request.getSession().getAttribute("password_correct")==null)
			{
				System.out.println("in");
				out.print("error");
				return;
			}
			String nickname = request.getParameter("nn");
			String realname = request.getParameter("rn");
			String intro = request.getParameter("intro");
			String newpassword = request.getParameter("np");
			if(!newpassword.equals(""))
				user.setPassword(newpassword);
			user.setNickname(nickname);
			user.setRealname(realname);
			user.setIntroduction(intro);
			userdao.save(user);
			userdao.getSession().beginTransaction().commit();
			request.getSession().removeAttribute("password_correct");
			out.print("success");
		}
		
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
